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<Title>Icon Donut Chart</Title>
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<p class="heading0">ChartDirector 7.0 (Java Edition)</p>
<p class="heading1">Icon Donut Chart</p>
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<img src="images/icondonut.png" width='400' height='300'>
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This example modifies the <a href="iconpie.htm">Icon Pie Chart</a> example by using a semi-transparent donut instead of a pie, and using metallic background color.<br><br>
<ul><li> <a href="BaseChart.setColors.htm">BaseChart.setColors</a> is used to select the default semi-transparent palette <a href="Chart.transparentPalette.htm">transparentPalette</a>. This palette uses semi-transparent data colors instead of the normal data colors.<br><br>
<li> <a href="Chart.metalColor.htm">Chart.metalColor</a> is used to create metallic colors using light blue and blue as the base colors. The colors are then used as the chart background color by calling <a href="BaseChart.setBackground.htm">BaseChart.setBackground</a>, and as chart title background color by calling <a href="Box.setBackground.htm">Box.setBackground</a> of the title <a href="TextBox.htm">TextBox</a> object.</ul>
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<p class="heading1a">Source Code Listing</p>
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<b>[JSP Version]</b> jspdemo/icondonut.jsp
<div class='codeblock'><code class='pre'>&lt;%@page import="ChartDirector.*, java.util.*" %&gt;
&lt;%
// The data for the pie chart
double[] data = {72, 18, 15, 12};

// The depths for the sectors
double[] depths = {30, 20, 10, 10};

// The labels for the pie chart
String[] labels = {"Sunny", "Cloudy", "Rainy", "Snowy"};

// The icons for the sectors
String[] icons = {"sun.png", "cloud.png", "rain.png", "snowy.png"};

// Create a PieChart object of size 400 x 300 pixels
PieChart c = new PieChart(400, 300);

// Use the semi-transparent palette for this chart
c.setColors(Chart.transparentPalette);

// Set the background to metallic light blue (CCFFFF), with a black border and 1 pixel 3D border
// effect,
c.setBackground(Chart.metalColor(0xccccff), 0x000000, 1);

//Set search path to current JSP directory for loading icon images
c.setSearchPath(getServletConfig().getServletContext(), request);

// Set donut center at (200, 175), and outer/inner radii as 100/50 pixels
c.setDonutSize(200, 175, 100, 50);

// Add a title box using 15pt Times Bold Italic font and metallic blue (8888FF) background color
c.addTitle("Weather Profile in Wonderland", "Times New Roman Bold Italic", 15).setBackground(
    Chart.metalColor(0x8888ff));

// Set the pie data and the pie labels
c.setData(data, labels);

// Add icons to the chart as a custom field
c.addExtraField(icons);

// Configure the sector labels using CDML to include the icon images
c.setLabelFormat("&lt;*block,valign=absmiddle*&gt;&lt;*img={field0}*&gt; &lt;*block*&gt;{label}\n{percent}%&lt;*/*&gt;&lt;*/*&gt;"
    );

// Draw the pie in 3D with variable 3D depths
c.set3D2(depths);

// Set the start angle to 225 degrees may improve layout when the depths of the sector are sorted in
// descending order, because it ensures the tallest sector is at the back.
c.setStartAngle(225);

// Output the chart
WebChartViewer viewer = new WebChartViewer(request, "chart1");
viewer.setChart(c, Chart.SVG);

// Include tool tip for the chart
viewer.setImageMap(c.getHTMLImageMap("", "", "title='{label}: {value} days ({percent}%)'"));
%&gt;
&lt;!DOCTYPE html&gt;
&lt;html&gt;
&lt;head&gt;
    &lt;title&gt;Icon Donut Chart&lt;/title&gt;
    &lt;!-- Include ChartDirector Javascript Library to support chart interactions --&gt;
    &lt;script type="text/javascript" src="cdjcv.js"&gt;&lt;/script&gt;
&lt;/head&gt;
&lt;body style="margin:5px 0px 0px 5px"&gt;
    &lt;div style="font:bold 18pt verdana;"&gt;
        Icon Donut Chart
    &lt;/div&gt;
    &lt;hr style="border:solid 1px #000080; background:#000080" /&gt;
    &lt;div style="font:10pt verdana; margin-bottom:1.5em"&gt;
        &lt;a href="viewsource.jsp?file=&lt;%=request.getServletPath()%&gt;"&gt;View Source Code&lt;/a&gt;
    &lt;/div&gt;
    &lt;!-- ****** Here is the chart image ****** --&gt;
    &lt;%= viewer.renderHTML(response) %&gt;
&lt;/body&gt;
&lt;/html&gt;</code></div>
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